Dacryocystogram

What it shows

Blocked tear ducts.

Why it is done

Watery eye.

Preparation

Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.

Radiation & safety

Typical effective dose 0.1 to 0.5 mSv, similar to about 2 weeks to 2 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.

How long it takes

30 minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

Sample type

Fluoroscopy

यो कहाँ गर्न सकिन्छ

सामान्य प्रश्न

What does a dcg show?
Blocked tear ducts.

Why is a dcg done?
Watery eye.

How do I prepare for a dcg?
Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.

Does a dcg use radiation?
Typical effective dose 0.1 to 0.5 mSv, similar to about 2 weeks to 2 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.

How long does a dcg take?
30 minutes

Dacryocystogram किन गरिन्छ?
Watery eye.

Dacryocystogram का लागि कसरी तयारी गर्ने?
Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.

Dacryocystogram गर्भावस्थामा सुरक्षित छ?
Typical effective dose 0.1 to 0.5 mSv, similar to about 2 weeks to 2 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.